Vianney Leroux


Vianney is an associate in the public and environmental law team in our Paris office. 

His expertise covers all areas of public law and regulatory (e.g., energy, transport, media, telecommunications, defence, foreign investment), environmental law (classified facilities, EU environmental law) and town planning law, both in advice and litigation.

He has also developed an expertise in contracts in the infrastructure sector and is involved on major transport and energy infrastructure projects.



Admitted to the Bar, Paris - 2020


Master's Degree in Public Economic Law, Sciences Po Paris, 2018 (with honors)

Master's Degree in Public Affairs, Sciences Po Paris, 2017 (with honors)


French, English
A&O Shearman was formed on May 1, 2024 by the combination of Shearman & Sterling LLP and Allen & Overy LLP and their respective affiliates (the legacy firms). Any matters referred to above may include matters undertaken by one or more of the legacy firms rather than A&O Shearman.